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VACUUM ›› 2024, Vol. 61 ›› Issue (6): 54-60.doi: 10.13385/j.cnki.vacuum.2024.06.10

• Vacuum Metallurgy and Thermal Engineering • Previous Articles     Next Articles

Recent Development of Localized Vacuum Electron Beam Welding Technology

LI Li-hang, FU Peng-fei, TANG Zhen-yun, MAO Zhi-yong   

  1. National Key Laboratory of Science and Technology on Power Beam Processes, AVIC Manufacturing Technology Institute, Beijing 100024, China
  • Received:2023-12-06 Online:2024-11-25 Published:2024-11-29

Abstract: The vacuum eletron beam welding plays an irreplaceable role in welding connections of large and thick structures. However, the size of the vacuum chamber remains a limitation for vacuum electron beam welding technology, making it a challenge to meet the welding requirements of extremely large structures. Therefore, both domestic and international researchers started working on localized vacuum electron beam welding technology, by using a smaller vacuum chamber to cover the welding structures locally to complete the ultra-large structure of the electron beam welding. This paper provides an overview of the latest advancements in localized vacuum electron beam welding technology around the world. Various forms and types of local vacuum electron beam welding equipment are introduced, and sealing structure, weld tracking, and other technical topics are discussed.

Key words: localized vacuum, electron beam welding, electron beam welding machine, moving sealing structure

CLC Number:  TG406

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